Stew is an NPC that sells items cheaply. However, he only sells one item at a time.

Which items sold by Stew, will net a profit when resold to Jani (a merchant buying and selling at normal prices) (and assuming the player character is wearing the Wastelander or Crimson Elite armor, which both give a 5% discount on all cash purchases)?

Stew regularly changes the item he is currenty selling. I also would like to know: What determines when will Stew change the item he is currently selling?

The RAGE wiki already lists some of the items sold by Stew that will net a profit when resold to Jani, but I'd like to know about the rest as Stew regularly changes the items he is selling.